+

WO2008146524A1 - 弾性波フィルタ装置 - Google Patents

弾性波フィルタ装置 Download PDF

Info

Publication number
WO2008146524A1
WO2008146524A1 PCT/JP2008/055411 JP2008055411W WO2008146524A1 WO 2008146524 A1 WO2008146524 A1 WO 2008146524A1 JP 2008055411 W JP2008055411 W JP 2008055411W WO 2008146524 A1 WO2008146524 A1 WO 2008146524A1
Authority
WO
WIPO (PCT)
Prior art keywords
surface acoustic
acoustic wave
filter device
wave filter
wiring
Prior art date
Application number
PCT/JP2008/055411
Other languages
English (en)
French (fr)
Inventor
Yasuaki Shin
Original Assignee
Murata Manufacturing Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co., Ltd. filed Critical Murata Manufacturing Co., Ltd.
Priority to JP2009516205A priority Critical patent/JP4873077B2/ja
Publication of WO2008146524A1 publication Critical patent/WO2008146524A1/ja
Priority to US12/614,510 priority patent/US8222971B2/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0047—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks
    • H03H9/0066—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically parallel
    • H03H9/0071—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically parallel the balanced terminals being on the same side of the tracks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0047—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks
    • H03H9/0052—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded
    • H03H9/0057—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded the balanced terminals being on the same side of the tracks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0085—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having four acoustic tracks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/6436—Coupled resonator filters having one acoustic track only

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

　同一圧電基板上に複数の弾性波フィルタが構成されており、大型化を招くことなく、通過帯域外減衰量の拡大を図ることができる弾性波フィルタ装置を提供する。 　圧電基板２上に複数の弾性波フィルタ３，４が配置されており、少なくとも１つの弾性波フィルタ３において、第１，第２の平衡端子６，７に接続される側の第２のＩＤＴ２１ｂ，２１ｃ及び第３のＩＤＴ３１ｂ，３１ｃのグラウンド電位に接続される側の端部が共通接続配線２５に接続されており、共通接続配線２５がグラウンド配線２６によりグラウンド端子１１に接続されており、グラウンド配線２６の共通接続配線２５に接続している接続点２７と、第１の平衡端子６との間の距離が、接続点２７と第２の平衡端子９との間の距離と等しくされている、弾性波フィルタ装置。
PCT/JP2008/055411 2007-05-30 2008-03-24 弾性波フィルタ装置 WO2008146524A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009516205A JP4873077B2 (ja) 2007-05-30 2008-03-24 弾性波フィルタ装置
US12/614,510 US8222971B2 (en) 2007-05-30 2009-11-09 Acoustic wave filter device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007143291 2007-05-30
JP2007-143291 2007-05-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/614,510 Continuation US8222971B2 (en) 2007-05-30 2009-11-09 Acoustic wave filter device

Publications (1)

Publication Number Publication Date
WO2008146524A1 true WO2008146524A1 (ja) 2008-12-04

Family

ID=40074797

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055411 WO2008146524A1 (ja) 2007-05-30 2008-03-24 弾性波フィルタ装置

Country Status (3)

Country Link
US (1) US8222971B2 (ja)
JP (1) JP4873077B2 (ja)
WO (1) WO2008146524A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5855639B2 (ja) * 2011-02-28 2016-02-09 京セラ株式会社 弾性波フィルタ
WO2019123810A1 (ja) * 2017-12-19 2019-06-27 株式会社村田製作所 弾性波装置
CN111492576B (zh) * 2017-12-19 2023-09-26 株式会社村田制作所 弹性波装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000059174A (ja) * 1998-08-14 2000-02-25 Hitachi Media Electoronics Co Ltd 弾性表面波分波器及びそれを用いた移動体通信機器
JP2001111381A (ja) * 1999-10-04 2001-04-20 Toshiba Corp 弾性表面波装置
JP2003204241A (ja) * 2002-01-08 2003-07-18 Murata Mfg Co Ltd 弾性表面波装置
WO2005099091A1 (ja) * 2004-04-08 2005-10-20 Murata Manufacturing Co., Ltd. 弾性境界波フィルタ
WO2006003787A1 (ja) * 2004-06-30 2006-01-12 Murata Manufacturing Co., Ltd. バランス型弾性波フィルタ及び弾性波フィルタ装置
WO2006009021A1 (ja) * 2004-07-23 2006-01-26 Murata Manufacturing Co., Ltd. 弾性表面波装置
WO2006068086A1 (ja) * 2004-12-24 2006-06-29 Murata Manufacturing Co., Ltd. バランス型ｓａｗフィルタ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3952907B2 (ja) * 2002-08-28 2007-08-01 株式会社村田製作所 弾性表面波装置、通信装置
JP3931767B2 (ja) * 2002-08-29 2007-06-20 株式会社村田製作所 弾性表面波装置、通信装置
JP4222197B2 (ja) * 2003-02-24 2009-02-12 株式会社村田製作所 弾性表面波フィルタ、通信機
DE602005014667D1 (de) * 2004-10-22 2009-07-09 Murata Manufacturing Co Elastik-oberflächenwellenfilter des ausgleichstyps
JP2006254410A (ja) * 2005-02-10 2006-09-21 Murata Mfg Co Ltd バランス型弾性波フィルタ
WO2008142905A1 (ja) * 2007-05-22 2008-11-27 Murata Manufacturing Co., Ltd. バランス型弾性波フィルタ装置及び複合フィルタ
JP2009206688A (ja) * 2008-02-27 2009-09-10 Fujitsu Media Device Kk バランスフィルタ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000059174A (ja) * 1998-08-14 2000-02-25 Hitachi Media Electoronics Co Ltd 弾性表面波分波器及びそれを用いた移動体通信機器
JP2001111381A (ja) * 1999-10-04 2001-04-20 Toshiba Corp 弾性表面波装置
JP2003204241A (ja) * 2002-01-08 2003-07-18 Murata Mfg Co Ltd 弾性表面波装置
WO2005099091A1 (ja) * 2004-04-08 2005-10-20 Murata Manufacturing Co., Ltd. 弾性境界波フィルタ
WO2006003787A1 (ja) * 2004-06-30 2006-01-12 Murata Manufacturing Co., Ltd. バランス型弾性波フィルタ及び弾性波フィルタ装置
WO2006009021A1 (ja) * 2004-07-23 2006-01-26 Murata Manufacturing Co., Ltd. 弾性表面波装置
WO2006068086A1 (ja) * 2004-12-24 2006-06-29 Murata Manufacturing Co., Ltd. バランス型ｓａｗフィルタ

Also Published As

Publication number Publication date
US8222971B2 (en) 2012-07-17
JP4873077B2 (ja) 2012-02-08
US20100052807A1 (en) 2010-03-04
JPWO2008146524A1 (ja) 2010-08-19

Similar Documents

Publication Publication Date Title
TW200605500A (en) Balance-unbalance converting-type elastic wave filter and elastic wave filter device
WO2006126168B1 (en) Bulk acoustic wave resonator device
EP1717953A3 (en) Surface accoustic wave filter and duplexer using the same
EP2501039A3 (en) Surface acoustic wave device and boundary acoustic wave device
WO2008146552A1 (ja) 弾性波分波器
EP1998442A3 (en) Integrated coupled resonator filter and bulk acoustic wave devices
WO2008009281A3 (de) Elektrisches modul
WO2009022410A1 (ja) 弾性境界波装置
JP5690877B2 (ja) 弾性波フィルタ
EP1315297A3 (en) Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same
WO2009001651A1 (ja) 弾性表面波装置及び通信装置
EP1998445A3 (en) Coupled resonator filter with a filter section
EP1998444A3 (en) Bulk acoustic wave device with coupled resonators
WO2008096514A1 (ja) 弾性波フィルタ装置
EP1983647A3 (en) Surface acoustic wave device and duplexer
EP1453197A4 (en) SURFACE ACOUSTIC WAVE FILTER
WO2008105199A1 (ja) 分波器及びその製造方法
EP1885064A3 (en) Filter having multiple surface acoustic wave filters connected in parallel
WO2010052969A1 (ja) 弾性波フィルタ装置および、それを備えるモジュール
JP5983907B1 (ja) 弾性波装置及び弾性波モジュール
EP2679993A3 (en) SAW array sensor
WO2009013974A1 (ja) 弾性表面波装置及び通信装置
WO2009022697A1 (ja) 測定装置、試験装置および測定方法
EP1783901A3 (en) Surface acoustic wave device
WO2009060594A1 (ja) 弾性波共振器、弾性波フィルタおよびこれを用いたアンテナ共用器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08738750

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2009516205

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08738750

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载